How To Flash OnePlus 6 Fastboot ROM [ Unbrick OnePlus 6 ]

Flash OnePlus 6 Fastboot ROM [ Unbrick OnePlus 6 ] : Are you looking a perfect method to flash stock ROM on OnePlus 6 using adb commands? If you are an advance user then probably you may know that officially there is no any OnePlus 6 fastboot rom to flash OnePlus 6 via ADB commands. Installing stock OxygenOS via ADB requires the fastboot ROM but company releases ROMs that flashes via updater app only, so now the question is that how to flash OnePlus6 fastboot ROM to unbrick OnePlus 6 or fix OnePlus 6 bootloop issue without updater app?

So guys in this tutorial we are going to show you how to install official firmware on oneplus 6 into fastboot mode? That means, we are going to flash OnePlus 6 fastboot stock ROM using adb command which is much easier method to unbrick OnePlus 6 Smartphone.

If you are getting any software related issue on oneplus 6 or bootloop issue or device stuck on logo, we recommend you to hard reset your device for once. Most of the time factory reset helps you to resolve all these issues without flashing ROM again. In case, you are facing the same issue again or unable to access the device, just download OnePlus 6 fastboot ROM from below download section, follow the instructions as it is as shown below and flash OnePlus 6 mobile, that’s it.

Flashing firmware on any device is the final solution to fix any type of problem [Only for software related issues].

Important:Probably you may know that OnePlus 6 is first smartphone from OnePlus that uses the new dual partitioning system [A/B system]. Just because of it, OnePlus will no longer release fastboot ROM for OnePlus 6 device. Basically it’s not required anymore. OnePlus only release ROMs that flashes via Updater app. So, how to flash OxygenOS on OnePlus 6 manually without updater app?

In this tutorial we are going to describe each and everything about OnePlus 6 fastboot OxygenOs firmware flashing with all necessary screenshots. Before that read the below points and check advantages of flashing firmware on OnePlus 6 Smartphone.

How To Flash OnePlus 6 Fastboot ROM [ Unbrick OnePlus 6 ]

Fastboot OxygenOS For OnePlus 6

Basically fastboot ROM is quite different ROM from stock recovery ROM. To flash fastboot ROM, you need to use pc/laptop to run adb commands directly from your pc. In short, you can’t flash fastboot ROM using twrp or sideload method.

Come to the device and boot into fastboot mode/ Bootloader mode using hardware key combination.

[Power off >> Press & holde Volume Up button + power button at the same time, release all keys once you see the oneplus logo.]

Now take a working USB cable and attach the device with pc via USB cable. Leave it as it is and don’t unplug it during the flashing process.

Now come to the pc part, Extract downloaded mfastboot tool on pc.

Extract the downloaded OnePlus 6 OxygenOS fastboot ROM zip file [OnePlus6Oxygen_22_OTA_013_all_1807130145_92ea1c670c0fae-FASTBOOT.zip] on pc. Copy all the files of firmware and transfer them into mFastboot folder.

If it’s asking to “overwrite” or “replace the files in destination” , just click on “Skip these files”.

NOTE: Makes sure all firmware files and mFastboot files are placed into the same folder as shown below.

mFastboot Files + Firmware

Now everything is set to go. You can run any .bat file[flash file] to flash firmware on OnePlus 6. Here you will see 5different flash files [.bat files] as shown below.

[Recommend to run “flash-all-partitions.bat”, if you are badly bricked your OnePlus 6]

Select anyone flash file and double click to run adb commands to install firmware. Process will start and may take 10-15 minutes to complete.

End of the process, device will reboot automatically. Otherwise, reboot the device manually.

Done!!!!

Commands & Features

flash-all-partitions-fastboot.bat : this .bat will flash all possible partitions through fastboot (Except persist) , there are some criticals partitions that can’t be flashed through fastboot;

flash-only-persist.bat : this .bat will flash only persist partition in fastboot mode (This is good for people that have problems with sensor);

flash-all-partitions-recovery-criticals.bat : this .bat will boot the twrp and will flash criticals partitions, use this carefully;

flash-system-boot-vendor.bat : this .bat is the same of older flash-all.bat and so it will flash only vendor, system and boot;

flash-all-partitions.bat : this .bat will run flash-all-partitions-fastboot.bat , then flash-only-persist.bat and then flash-all-partitions-recovery-criticals.bat .

Trouble Shooting:

In any case, above method is not working for you or getting issue to run adb commands via script, boot device into fastboot mode, attach device with pc via USB cable and run the below commands manually.